Doctor Who aired its annual Christmas special episode in the U.K. earlier today, and it will be shown in the U.S. later this evening. So in order to get you in the spirit of watching our favorite Time Lord, we present the tale of one man's quest to make a model of the Doctor's TARDIS that is bigger on the inside than the outside.

Greg Kumparak, a former writer for TechCrunch, posted a feature on his personal website where he showed how he went about creating a small version of the TARDIS. The making of the model was pretty straightforward; he got some wood and paint and formed the model of the TARDIS, which in its chameleon form looks a lot like an old U.K. police box.

Of course, the TARDIS is not a police box; it is a time and space ship with a vast interior that's much bigger than it should technically be. Kumparak doesn't have the trans-dimensional engineering needed from the Time Lords, so he had to compromise a bit. He picked up a copy of Blender and make a 3D model of the TARDIS control room (in this case, the room featured in the series from 2005 to 2010).

Then he used the Unity engine and Qualcomm’s Vuforia API to turn the Bender 3D model into an augmented reality app that can run on a smartphone. The last part was to put a "big timey-wimey space-warp-lookin’ marker" inside the main TARDIS model doors. The final result is that if you look at that marker with the augmented reality app, you can see the inside of the control room. There's no word on if he plans to release this app to the public.